Let's face it: Sex can be kinda gross. With all those body odors and fluids being traded back and forth, it's no small miracle that humans voluntarily choose to copulate at all. But as scientists from the Netherlands have recently pointed out, our willingness to engage in sexual acts despite the yuck factor may be on… »9/13/12 8:08am 9/13/12 8:08am

Most humans are grossed out by things like oozing sores or rotten meat, and there might well be an evolutionary basis for staying away from these harmful things. But it might go deeper: that disgust might have created our morality. »1/03/11 2:00pm 1/03/11 2:00pm